Summary

Dr. Thomas Malloy is a gastroenterologist who graduated from the Medical College of Wisconsin and has been practicing medicine for more than four decades. His extensive experience in digestive health care spans 42 years, making him a seasoned specialist in diagnosing and treating conditions affecting the stomach, intestines, and related organs. Dr. Malloy is fluent in both English and Spanish, allowing him to serve a diverse patient population.

Dr. Malloy practices at multiple Essentia Health locations throughout Minnesota and Wisconsin, including facilities in Duluth, Virginia, Deer River, Superior, and Ashland. His primary affiliations include Essentia Health Duluth, Essentia Health Saint Marys Medical Center, and several other regional hospitals within the Essentia Health network. Patients have given him an average rating of 3.5 out of 5 on Vitals. He provides comprehensive gastroenterology services across the Twin Ports region and northern Minnesota communities.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.5
  • 42 years of experience
  • speaks English, Spanish
  • Medical College Of Wisconsin
  • 2 written reviews
  • 1 specialty
  • 10 areas of expertise
  • 1 board certification
  • 8 hospital affiliations
  • 9 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Thomas G Malloy has 9 locations

Duluth Clinic

400 E 3rd StDuluth, MN 55805
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Essentia Health Gastroenterology

420 E 1st St Fl 2Duluth, MN 55805
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Essentia Health Saint Marys Hospital Superior

3500 Tower AveSuperior, WI 54880

Essentia Health-Northern Pines Clinic (Aurora)

115 10th Ave NE Ste ADeer River, MN 56636

Essentia Health-Northern Pines Clinic (Aurora)

1615 Maple Ln Ste 1Ashland, WI 54806
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Essentia Health Virginia

901 9th St NVirginia, MN 55792

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Dr. Thomas G Malloy JR., MDJan Seiler, APRNDr. Roderick Power Hood, MDDr. David Jon Brandhagen, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients
3.5 
42 Years of Experience 65 Years of Experience 36 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English
Duluth , MNMontgomery , ALDuluth , MNDuluth , MN
Med School: Medical College Of Wisconsin Med School: Georgia State University Med School: University of Minnesota, Twin Cities Med School: Mayo Medical School
Current Profile
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Insurance Plans Accepted by Dr. Thomas G Malloy

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Thomas G Malloy has the following specialty

Specialty Expertise

Dr. Thomas G Malloy has the following 10 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

42 Years Experience

Dr. Thomas G Malloy holds expired and inactive medical licenses in the states of Wisconsin and Minnesota.

Medical License

Medical Doctor with an expired medical license in the state of Wisconsin that expired in 2025 and an inactive medical license in the state of Minnesota that expired in 2025.

Education & Training

Medical School

Graduated from Medical College Of Wisconsin in 1984.

NPI Number

Dr. Malloy's NPI number is 1285696161.

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Frequently Asked Questions

Where is Dr. Thomas Malloy's office located?
Dr. Thomas Malloy's office is located at 400 E 3rd St, Duluth, MN, 55805.
How can I make an appointment with Dr. Thomas Malloy?
You can find contact information for Dr. Thomas Malloy here on Vitals.
Which hospitals is Dr. Thomas Malloy affiliated with?
Dr. Thomas Malloy is affiliated with Essentia Health Duluth, Essentia Health Saint Marys Medical Center, Essentia Health Virginia, Essentia Health Deer River, Rainy Lake Medical Center, Tamarack Health Ashland Medical Center, Essentia Health Saint Marys Hospital Superior, and Essentia Health Saint Marys Childrens Hospital.
Does Dr. Thomas Malloy accept my insurance?
You can see the insurance plans that Dr. Thomas Malloy accepts on their Vitals profile.
Does Dr. Thomas Malloy accept virtual/telehealth appointments?
Dr. Thomas Malloy has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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